Tyshawn was using guess and check to try to find the solution to an equation. He correctly found that x = 2, x = 3, x = 4, and x = 5 all made the equation he was trying to solve true before he stopped guessing values. What does this mean about the number of solutions to the equation he was trying to solve? How do you know?

Out of the 150 students at a summer camp, 72 signed up for canoeing. there were 23 students who signed up for trekking, and 13 of those students also signed up for canoeing. use a two-way table to organize the information and answer the following question: approximately what percentage of students signed up for neither canoeing nor trekking?